The possibility of a noise-induced hearing loss occurring as a result of a high level of sucker-tip noise in myringtomy for seromucinous otitis media is discussed, A group of twenty-four ears is investigated and the noise levels generated by the suction tube are mearsured at operation by means of a probe microphone lowered into the external auditory meatus The conclusions reached are that, although the sound levels attained are at times quite high, they are not of suffcient amplitude, nor are they present for a suffcient length of time, to produce a sencori-neural hearing loss.

Three different types of noise-induced hearing loss have been reported in the literature. The two less common types are described here. Three cases of thesetwo types from our clinic are reported. Since these 2 types of noise-induced hearing loss often involve low frequencies it is important to recognize them in compensation cases.

A CASE of granulomatous vasculitis affecting vessels in the left temporal area of the skull, and also vessels in the right and left axillary areas, is described. Initially, the patient responded favourably to antibiotic therapy, raising the possibility of a microbiologic agent as the causative factor of this puzzling disorder. Finally she has responded very favourably to steroids, thereby indicating a possible immunologic basis for the condition, as has already been postulated by several authors.